Loading sound in from external mc - path problem

1

I created SWF with sound on the buttons, which works properly

      my_Sound = new Sound ();
		my_Sound.attachSound ("email_stop");
		my_Sound.start ();

I plan load this SWF in main SWF, but if I load it than sound not works.

Ist it path problem i think.

How shall i targetting this sound if I load the external SWF in this mc container?

_level0.indicator.windowQuestions_mc.container_questionsForm

What is the best way?
Can i use relative path somehow?